FIELD: chemistry.
SUBSTANCE: invention can be used in production of pigments, ceramics, adsorbents, cosmetics, antibacterial preparations and catalysts. The method of producing photocatalytically active titanium dioxide from titanium tetrachloride involves precipitation of titanium dioxide by simultaneously discharging into water a solution of a titanium salt and aqueous ammonia solution at constant pH and temperature and intense stirring, washing, drying and heat treatment of the formed precipitate. Precipitation is carried out from titanyl sulphate solution at pH 3-6 and temperature 50-80°C. The titanyl sulphate solution is prepared by dissolving titanium tetrachloride at room temperature in weakly concentrated sulphuric acid 4.5-22% with the weight ratio SO4/Ti=0.5-3, followed by dilution with distilled water to concentration 150-250 g/l TiO2.
EFFECT: invention increases photocatalytic activity of titanium dioxide obtained from titanium tetrachloride.
1 tbl, 8 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PREPARING PHOTOCATALYST BASED ON η-MODIFICATION OF VANADIUM-DOPED TITANIUM DIOXIDE, ACTIVE IN VISIBLE SPECTRUM REGION | 2013 |
|
RU2540336C1 |
METHOD OF PREPARING TITANIUM OXIDE PHOTOCATALYST ACTIVE IN VISIBLE SPECTRUM | 2012 |
|
RU2520100C1 |
METHOD OF PRODUCING CRYSTALLINE TITANIUM DIOXIDE IN ANATASE STRUCTURAL MODIFICATION | 2014 |
|
RU2575026C1 |
METHOD OF PRODUCING TITANIUM NANOCRYSTALLINE TITANIUM DIOXIDE-BASED PHOTOCATALYST | 2009 |
|
RU2408428C1 |
METHOD OF PRODUCING TITANIUM DIOXIDE-BASED PHOTOCATALYST | 2009 |
|
RU2408427C1 |
METHOD OF PRODUCTION OF PHOTOCATALYTIC SORBING FABRIC MATERIAL | 2014 |
|
RU2559506C1 |
METHOD OF PRODUCING NANOSIZED TITANIUM DIOXIDE | 2014 |
|
RU2565193C1 |
METHOD OF PRODUCING THERMALLY STABLE TITANIUM DIOXIDE-BASED PHOTOCATALYST | 2014 |
|
RU2563239C1 |
METHOD FOR PRODUCTION OF NANOSIZE PARTICLES OF TITANIUM DIOXIDE | 2007 |
|
RU2349549C2 |
POWDERED TITANIUM OXIDE, METHODS FOR PRODUCTION THEREOF AND USE THEREOF | 2016 |
|
RU2713205C2 |
Authors
Dates
2013-06-27—Published
2011-10-25—Filed